gneissic granite

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• Milford granite (Massachusetts) — Detail of Pink Milford granite Flour and Grain Exch …   Wikipedia

• Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …   Wikipedia

• Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …   Universalium

• Gascoyne Complex — The Gascoyne Complex is a terrane of Proterozoic granite and metamorphic rock in the central western part of Western Australia. The complex outcrops at the exposed western end of the Capricorn Orogen, a 1,000 km long arcuate belt of folded,… …   Wikipedia

• Gneiss — rock Augen gneiss from Rio de Janeiro, Brazil …   Wikipedia

• Slave craton — which is one of the oldest dated rock units on Earth at 4.03 Ga. The crust of the Slave craton is thought to have amalgamated during a 2.69 Ga collision between a proto Slave western basement complex, known as the Central Slave Basement Complex,… …   Wikipedia

• Myrmekite — describes a vermicular, or wormy, intergrowth of quartz in plagioclase. The intergrowths are microscopic in scale, typically with maximum dimensions less than 1 millimeter. The plagioclase is sodium rich, usually albite or oligoclase. These… …   Wikipedia

• Migmatite — Ptygmatic folding in migmatite Migmatite on the coast of Saa …   Wikipedia

• migmatite — Rock composed of a metamorphic host material that is streaked or veined with granite; the name means mixed rock. Many migmatites probably represent partial fusion of the metamorphic host; some components of the rock are fused and gather to… …   Universalium

• Metamorphic rock — Metamorphic redirects here. For other uses, see Metamorphic (disambiguation). Quartzite, a form of metamorphic rock, from the Museum of Geology at University of Tartu collection. Metamorphic rock is the transformation of an existing rock type,… …   Wikipedia

• Bangalore Metropolitan Environment — Bangalore, is situated in the southeast of the South Indian state of Karnataka. It is positioned at 12.97° N 77.56° E and covers an area of 2,190 km2 (850mi2) A landlocked city, Bangalore is located in the heart of the Mysore Plateau (a region of …   Wikipedia